Grand Cherokee 2WD L6-4.0L VIN S (1997)
Odometer: Testing and Inspection
Odometer and Trip Odometer
If the problem being diagnosed is related to gauge accuracy, be certain to confirm that the problem is with the gauge and not with an incorrect
speedometer pinion gear, axle ratio, or tire size.
WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, REFER TO AIR BAGS AND SEAT BELTS/AIR BAGS BEFORE
ATTEMPTING STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE.
FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIR-BAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
Diagnosis of the vehicle speed sensor and circuit or the Powertrain Control Module (PCM) should be performed with the DRB scan tool. Diagnosis of
the odometer and trip odometer display, the instrument cluster circuitry, the Body Control Module (BCM), or the CCD data bus should be performed
with the DRB scan tool.
